---
product_id: 337668665
title: "FELIWAY® Optimum 30 Day Cat Calming Refill for Pheromone Diffuser, 48ml - Helps Reduce Common Signs of Stress in Cats & Kittens, Enhanced Calming"
brand: "feliway"
price: "€ 48.34"
currency: EUR
in_stock: true
reviews_count: 12
category: "Feliway"
url: https://www.desertcart.nl/products/337668665-feliway-optimum-30-day-cat-calming-refill-for-pheromone-diffuser
store_origin: NL
region: Netherlands
---

# 30-day continuous calming 700 sq ft coverage patented pheromone formula FELIWAY® Optimum 30 Day Cat Calming Refill for Pheromone Diffuser, 48ml - Helps Reduce Common Signs of Stress in Cats & Kittens, Enhanced Calming

**Brand:** feliway
**Price:** € 48.34
**Availability:** ✅ In Stock

## Summary

> 🐾 Unlock the ultimate zen for your feline — because calm cats make happy homes!

## Quick Answers

- **What is this?** FELIWAY® Optimum 30 Day Cat Calming Refill for Pheromone Diffuser, 48ml - Helps Reduce Common Signs of Stress in Cats & Kittens, Enhanced Calming by feliway
- **How much does it cost?** € 48.34 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/337668665-feliway-optimum-30-day-cat-calming-refill-for-pheromone-diffuser)

## Best For

- feliway enthusiasts

## Why This Product

- Trusted feliway brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Broad-Spectrum Calm:** Effective for cats and kittens of all ages, tackling multiple stress behaviors simultaneously.
- • **Discreet & Drug-Free:** Unscented, silent, and non-sedating formula that only affects your cat, not humans or other pets.
- • **Plug & Play Serenity:** Easy-to-use plug-in diffuser refill designed for seamless integration into your home.
- • **Vet-Backed Confidence:** #1 vet recommended brand with 25+ years of feline stress expertise.
- • **Stress Reduction Mastery:** Clinically shown to reduce urine spraying by 77%, scratching by 73%, and tension by 72%.

## Overview

FELIWAY® Optimum 30 Day Cat Calming Refill delivers a patented pheromone formula that reduces common feline stress behaviors like urine spraying, scratching, and fear. Covering up to 700 sq ft, this plug-in refill offers continuous, drug-free calming support for up to 30 days, trusted by millions and recommended by vets worldwide.

## Description

FELIWAY® Optimum is our best option for reducing common signs of cat stress, such as urine spraying, scratching, fears, tension, and conflict. The patented formula in FELIWAY® Optimum helps cats with more signs of stress, in more situations, and calms cats better than ever. FELIWAY® Optimum provides up to 4 weeks of continuous calming support with each refill, helping your cat feel secure and relaxed every day. Each diffuser covers an area up to 700 square feet, it’s effective for large living areas and is suitable for cats of all ages. Easy to use, it’s the perfect way to promote your cat’s well-being and reduce stress-related behaviors.

Review: Great product that eliminated and over-licking issue with my cat - My cat had been dealing with a pretty serious over‑licking issue. She was removing patches of fur, and it was clearly stressing her out. After a vet visit, I was told it was likely a nervous behavior and was recommended to try the Feliway calming pheromone diffusers. I’m really glad I did. Once I started using this product, the constant licking stopped, and she’s been noticeably happier and more relaxed overall. It wasn’t an overnight change, but the improvement has been steady and obvious. The 6‑pack value bundle is great for keeping the diffusers running without interruption, and for us, it’s absolutely been worth it. Seeing her comfortable and calm again has made a huge difference. The diffusers don't make any noise and there is no scent. They work great and last about a month. The diffuser fits in a standard outlet and looks like a typical home fragrance type of diffuser.
Review: Calms the cat ! - I love this product because it eases my fur babies anxiety. I have used Feliway several times for different changes in my cats environment. From moving to changing up his routine to where he can no longer sleep in the bedroom in preparation for a new born to bringing the new born baby home. The diffuser makes no noise and provides enough oil content to last a month. It is small and discreet. You cannot smell it but your cat can and it helps your cat to feel safe and chill. Our kitty has been doing amazing with all the changes we’ve made recently and I owe it all to these!

## Features

- REFILL PACK INCLUDES: FELIWAY Optimum refill pack includes 1 vial; make sure to only use a FELIWAY diffuser with a FELIWAY Optimum refill (FELIWAY products have gone through thorough safety testing, and are not compatible with other brands)
- REDUCES COMMON SIGNS OF CAT STRESS: FELIWAY Optimum helps reduce common signs of cat stress such as urine spraying, scratching, fears, and tensions & conflicts. Cat owners reported a 77% reduction in urine spraying, 72% reduction in tension and conflicts, a 73% reduction in scratching, and a 70% reduction in fearful reactions to changes*
- ENHANCED SERENITY FOR CATS AND KITTENS: Featuring our patented pheromone discovery¹, FELIWAY Optimum brings the best of feline calming pheromones for improved results². It helps cats with more signs of stress, in more situations, and calms cats better than ever²
- USED BY MILLIONS OF CAT FAMILIES: FELIWAY Cat Calming Pheromone Diffusers are used by millions of families around the world to help ease their cats’ stress related behaviors; they use the science of pheromones to send calming messages to your cat to help them feel more safe and secure
- DRUG FREE & SAFE TO USE: FELIWAY diffusers are drug-free, non-sedating, and while cat pheromone analogs may help your cat, they won't affect humans or other pets
- COVERS LARGE LIVING SPACES: Each diffuser covers an area up to 700 sqft, ensuring widespread calming support throughout your home for cats of all ages. To get started, simply plug your diffuser into an open outlet with 4+ feet of space to diffuse, with the vents pointed upward
- #1 VET RECOMMENDED BRAND: FELIWAY Optimum is the patented¹ formula from the #1 vet recommended brand, and is backed by 25+ years of feline stress expertise and scientific research

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09885JMHL |
| ASIN  | B09885JMHL |
| Age Range Description | All Life Stages |
| Auto Shutoff | No |
| Best Sellers Rank | #212 in Pet Supplies ( See Top 100 in Pet Supplies ) #1 in Cat Relaxants |
| Brand | FELIWAY |
| Brand Name | FELIWAY |
| Capacity | 48 Milliliters |
| Color | Translucent |
| Coverage | Up to 700 sq ft |
| Customer Reviews | 4.4 4.4 out of 5 stars (13,089) |
| Date First Available | June 29, 2021 |
| Date First Available  | June 29, 2021 |
| Directions | FELIWAY Optimum refills provide calming pheromones continually for up to 30 days in a 700 square foot area. We recommend using an additional diffuser if the room is bigger than 700 square feet. We recommend plugging in the FELIWAY Optimum diffuser in the room where you cat spends the most time. Try not to plug the diffuser under items (e.g. shelves) or close to objects (e.g. behind curtain or door… |
| Floor Area | 700 Square Feet |
| Included Components | Refill vial |
| Item Dimensions LxWxH | 33.37 x 33.37 x 33.37 inches |
| Item Package Dimensions L x W x H | 4.61 x 2.05 x 2.01 inches |
| Item Weight | 1.6 ounces |
| Item model number | D92120K |
| Item model number  | D92120K |
| Manufacturer | Feliway |
| Manufacturer  | Feliway |
| Material | Plastic |
| Model Name | Feliway Optimum |
| Mounting Type | plug-in |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Product Dimensions | 33.37"L x 33.37"W x 33.37"H |
| Product Dimensions  | 33.37 x 33.37 x 33.37 inches; 1.6 ounces |
| Recommended Uses For Product | Home |
| Scent | Unscented |
| Set Name | 1 pack |
| Size | 1 pack |
| Special Feature | Long Lasting Aroma |
| Specific Uses for Product | Behavior |
| Target Audience Keyword | cats, house-cats |
| UPC | 751784600923 365293672380 365293016504 313551957182 381005461257 381005459254 850002593129 751784600930 |
| Unit Count | 1 Count |
| Wattage | 1 watts |

## Product Details

- **Brand:** FELIWAY
- **Color:** Translucent
- **Material:** Plastic
- **Recommended Uses For Product:** Home
- **Scent:** Unscented

## Images

![FELIWAY® Optimum 30 Day Cat Calming Refill for Pheromone Diffuser, 48ml - Helps Reduce Common Signs of Stress in Cats & Kittens, Enhanced Calming - Image 1](https://m.media-amazon.com/images/I/71LMKUlLYgL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Does this work better than the Classic? I feel like my cat is getting used to the Classic and it doesn’t calm him as much as it used to.**
A: I have used the multi- cat on & off for years with excellent results, but I wanted to give the optimum.  Not sure if it's necessarily better (both are equally effective for us) but it definitely works faster.  For your situation, switching to a different formula is worth a shot.

**Q: Can the same diffuser i have for the multi cat be used for this?**
A: The instructions actually say to not use another brands diffuser for the refills, and not to use another brands refills in the diffuser. It does not specifically say to not use another one of their own diffusers. I will say I used my old multi cat diffuser and it was fine and worked well.

**Q: Can this be plugged in 220v or just 110v?**
A: I believe it would only be safe to use in 110 volt.

**Q: Can you use this in a dog friendly home with two cats?**
A: You may want to contact Feliway directly for the best answer. That said, the cat pheromones shouldn't effect your dog. If your dog is a chewer I recommend plugging in somewhere the dog can't reach it since it's ball shaped (or train the dog that it's strictly off limits).

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product that eliminated and over-licking issue with my cat
*by J***S on February 8, 2026*

My cat had been dealing with a pretty serious over‑licking issue. She was removing patches of fur, and it was clearly stressing her out. After a vet visit, I was told it was likely a nervous behavior and was recommended to try the Feliway calming pheromone diffusers. I’m really glad I did. Once I started using this product, the constant licking stopped, and she’s been noticeably happier and more relaxed overall. It wasn’t an overnight change, but the improvement has been steady and obvious. The 6‑pack value bundle is great for keeping the diffusers running without interruption, and for us, it’s absolutely been worth it. Seeing her comfortable and calm again has made a huge difference. The diffusers don't make any noise and there is no scent. They work great and last about a month. The diffuser fits in a standard outlet and looks like a typical home fragrance type of diffuser.

### ⭐⭐⭐⭐⭐ Calms the cat !
*by J***E on February 11, 2026*

I love this product because it eases my fur babies anxiety. I have used Feliway several times for different changes in my cats environment. From moving to changing up his routine to where he can no longer sleep in the bedroom in preparation for a new born to bringing the new born baby home. The diffuser makes no noise and provides enough oil content to last a month. It is small and discreet. You cannot smell it but your cat can and it helps your cat to feel safe and chill. Our kitty has been doing amazing with all the changes we’ve made recently and I owe it all to these!

### ⭐⭐⭐⭐ Works great, doesn't last 30 days.
*by S***T on March 25, 2024*

We recently adopted 2 cats from a shelter. One of the cats was having a hard time adjusting, she would barely come out from under the couch and was chewing on herself. Our vet recommended this to help her. It worked wonders! Not only did she come out of hiding but she let us pet her and plays with the other cat and us. My only complaint is that it doesn't not last 30 days. I have used it for 2 months and both months it ran dry after 20 days. At the price it is I would expect it to last the entire 30 days. We only notice it ran out early due to the fact that once the 20th day rolls around our anxious kitty starts to over groom and gets bald spots. Once we change it she stops, only for when day 20 rolls around, she again started over grooming. I even marked on my calendar when I changed it to see how many days exactly. If it wasn't for that we would give it 5 stars as it really does help. We are going to be trying some other alternatives due to the fact it is a little pricey, doesn't last 30 days and we hope after she's here longer she might not need it.

## Frequently Bought Together

- FELIWAY® Optimum 30 Day Cat Calming Refill for Pheromone Diffuser, 48ml - Helps Reduce Common Signs of Stress in Cats & Kittens, Enhanced Calming
- FELIWAY® Classic Cat Calming Spray, 60ml - Comforts Cats at Home and On the Go and Helps to Calm During Travel

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-01*